Ankle brace



FIG. 1 is a front view of the ankle brace, showing my new design in an open configuration;

FIG. 2 is a rear view of the design of FIG. 1;

FIG. 3 is a right view of the design of FIG. 1 in a folded configuration; and,

FIG. 4 is a left view of the design of FIG. 1 in a folded configuration. 

The ornamental design for an ankle brace, as shown and described. 